Seaming-machine for sheet-metal vessels



(No Mom.) 5 sheets-she@ lF. A. WALSH.` SEAMING MACHINE POR SHEET METAL VESSELKS.

N0.s82,499. Y 1 -Ptennedlvray 8,1888;

(NoMoael.) 'fsseenshen E. A. WALSH. v

SEAMINGAMAGEINE k,EUR SHEET METAL VESSELS.

No; 382,499.A y, Patented May 8, 18488@ IIn' mlsss: l p

N. PETERS, Phnm-uchugnplwrv, wumngtun. D.Cy

A(No Model.) 8 I `A 'sheets-Sileet 57. F. WALSH. l

SEAMING MACHINE FR SHEET METAL VESSELS.

N07, 382,499; Y lPatented May '8, 1888/2 N. PETERS Phammhogqplwn wnmxngem, n c.

UNITED STATES PATENT OFFICE.

FRANCIS A. wALSH, on MILWAUKEE, WISCONSIN.

si-:AMlNG-MACHINE Foa SHEET-METAL vEssELs.

SPECIFICATION forming part of Letters Patenty No. 382,499dated May 8, 1888.

vApplication filed January 3, 1887. Serial No. 223,200. (No model.) y.

To @ZZ Lwm it may concern:

Be it known that 1, FRANCIs A. WALsH, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin,haveinvented certain new and useful Improvements in Machines for Working the Seams ot' Sheet-Metal Vessels; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to machines for seaming sheet-metal vessels,being an improvement on my Patents No. 271,668, dated February 6. 1883, and No. 277,962, dated May 22,1883; and it consists in certain peculiarities of construction and combination of parts, to be hereinafterdescribed with reference to the accompanying drawings, and subsequently claimed.

In the drawings, Figure 1 represents a side elevation of a machine constructed according to my invention; Fig. 2, a horizontal sectional view illustrating a roclrshaft, its bearing, and

. the seaming rolls or formers in operativel position with relation to a sheet-metal vessel; Fig. 3, a front elevation of a portion of my machine; Fig. 4, a side elevation illustrating in full and dotted lines the diiferent positions of the vheads during the operation of forming the seam; Fig. 5, a sectional view of one end of a vessel body and cover as constructed before being worked on by my machine; Fig. 6, -a detail view of the seaming mechanism with relation to a vessel during the first stage of forming the seam; Fig. 7, asimilar view during the second stage; Fig. 8, a like view showing the third and last stage or the completion of the seam; Fig. 9,. a detail of one of the cams and a sliding plate actuated by the same; Fig. 10, a detail sectional view showing a clutch mechanism employed in my machine; Fig. 11, a detail view showing the means for vertically adjusting the upper chuckspindle; Fig. 12, a horizontal section showing the main standard, a bracket, and means for adjustably uniting said parts; and Fig. 13, a modification.

Referring by letter to the drawings, A represents the base, and A the main standard, of my machine provided with bearings c, for a horizontal drivingshaft, B, geared to a wormwheel7 C, loose on a vertical shaft, D, and pro' vided at its inner end with a bevel gear-wheel, B', that meshes with asimilar whee],F/,splined on a vertical spindle, E, thelatter having its bearings in armsb b' of the. main standard yand carrying a detachable chuck, E, on its lower end.

Thus far the partsjust described are somewhat similar to corresponding parts shown in my Patent No. 277,962, but differ therefrom,as follows: The vertical shaf t D has its upper end loose in a bracket,V c, projecting from the arm b of the standard,and is carried down to nearly the base A of the machine, whereitisstepped in a bearing, c', projecting from said standard, the latter being also provided with shelves A`l A3, through which said shaft passes, and at the Sametime the vertical spindle E has its upper end suitablysecured to a set-screwed,

as shown in detail, Fig. 11, that operates in a bracket, d', forming part of the arm b of-the standard, this set-screw being provided with a jam-nut, d. v

By means of the screwy d the spindle E may be vertically adj usted to compensate` forvsuch slight variations as at-times occur in the length F, interiorly provided with a clutch mechanism, asillustrated in detail by Fig. 10, this mechanism being similar to that shown and described in my -Patent No. 321,263, dated June 30, 1885, and therefore only brieiiy re-v ferred to in the present instance, said clutch mechanism serving to unite the cam-wheel with the worm-wheel Gwhen -the lever F', full crumed to the arm b of 'the standard A', is drawn` down, said lever being connected by a spring, F2, with the shelf A? on the standard. By thus actuating the lever Fthe roulettes" on its inner end isbrought out, of the notch e in the cam-wheel F, to thereby set theseaming mechanism in operation, as will be hereinafter more fully described. I

Thelower portion ofthe verticalshaftDis provided with a wheel, G, feathered thereto and having a cam=notch,f, that engagesaroulette, f on a lever, G', fulcrumed to a bracket, I, and connected by an adjustable rod, G2,w ith a foot-lever, G, fulcrumed to the base A of the machine. The outer end of the lever G is pro vided with a slot-,f2, that engages a stud, g', on a collar, g, ofa vertical spindle, H, in line with the one E, and carrying at its upper end a detachable chuck, I-I, said spindle H having its bearings in the bracket I, feathered to the main standard,so as to be vertically adjustable thereon, said bracket being held inits adjusted position by a set bolt and nut, I', as illustrated in detail, Fig. 12. A loose collar, g2, is arranged on the spindle H immediately below its upper bearing, and between this latter collar and the stationary one g is located aspiral spring, J; but, if found desirable, this spring may be omitted, as its only function is to give the lower chuck, H', a spring-bearing against the vessels operated upon by my machine.

The shelf A3 on the standard has a vertical depending portion, A, that has cast therewith or bolted thereto a box, K, in which is fulcrumed a block, L, provided at its front with an extension having right-angular shoulders h and a l- -shaped slot, h', the rear of this block having,r projected therefrom an arm, L', provided with a suitable stud, 7L, or roulette, to engage a cam-whcel, M, feathered on the ver tical shaft D. j

Secured to the block L, by means of a l shaped bolt, t', so as to be laterally adjustable thereon, isthe vertical depending flange N' of a bearing, N, for a shaft, O, the latter being preferably cut away at the front to form a triangular piece, O', to the plane faces of which are secured rolls or formers lc k', the latter being either stationary or' movable, as may be found most desirable. y

The bearing N at its extreme front is provided with a chamber, N2, for a loose disk, P', that forms a bearing for a vertical shaft, P, the latter having feathered thereon an arm, P2, to which is operatively connected aroll or former, k2. In some instances the bearing P' maybe fixed, and I do not therefore limit myself to a loose disk. It will also be understood that the shaft P may be journaled independent of the heads, or I may omit said shaft and the arm connected thereto. l

Fast on the upper end of thevertical shaft I is a crank-arm, Q, connected by a rod, Q', with a sliding plate, R, operative in a guide piece, R', having a depending sleeve, Rz, that surrounds the vertical shaft D. The guidepiece R' is ehambered on each side to receive springs myeaeh having one end thereof secured to said guidepiece and the other endV fast-to the sliding plate R, as best illustrated by full and dotted lines, Fig. 4, and said sliding plate is provided with a lug or roulette, m', that comes in the path of a cam, S, on the vertical shaft D, this arrangement of parts serving to operate the crank-arm Q at the proper time and cause the roll or former 7cl to do its work.

The inner end ofthe shaftO carries a toothed pinion, O2, that meshes with a horizontal rack, O3, operatively arranged `in the box K on the right-angular shelf A3. Said rack in turn meshes with a pinion, T, journaled in a bearwith a stud ,or roulette, p, that engages the camgroove in the wheel F.

4 The bearing N, shaft O, and the several parts immediately connected therewith constitute what I term a head, and hereinafter this term will be at times employed to desig nate said aggregation of parts.

It will be understood that the pinion O" is connected to the shaft O in such a manner that it may be loosened therefrom when the head is laterally adj usted, thus preventing the shaft O from being rocked during such operation, or when adjusting the head for work on straight or flaring bodies. Thus far I have only dcscribed a single head, the latter, in connection with the other operative parts, being all that is necessary in a machine for seaming but one end or cover piece to the body of a sheet-metal vessel.

Vhereitis desirabletoseamboththetopand bottom pieces to the vesselvbody at one operation, I provide another head similar in general construction to the one aready described, and likewise connected to a canrwheel on the vertical shaft D.

It will be noticed that the box K, to which the lowerhead is fulcrumed, has arms K', that loosely tit the shaft D and move thereon with the adjacent cams, M G, when it is desirable kto vertically adjust this latter head on said shaft. In orderto operate both heads at one time, Idouble the width of the pinion O2 on the shaft O belonging tothe upper head and have it mesh with a vertically-disposed rack, V, that has a guide, r, secured tothe shaftbearing N of said upper head, and tothelower head I journal an intermediate toothed pinion, O, that communicates motion to the pinion on the shaft of the lower one of said heads. The vertical shaft P is carried down and connected to the lower head by the same means employed for connecting it with the upper head, andan arm carrying a roll or former, k'f, is made fast to said shaft.

In the operation of my invention I will describe the machine as constructed to seam both the top and bottom ends to a vessel-body,such a machine being illustrated in the drawings. A vessel-body with its top and bottom pieces in position thereon, as shown by Fig. 5, is placed on the lower chuck, H', and the footlever Gr3 depressed to draw the roulcttef' out of the notchf in the cam G on the vertical shaft D and at the same time to bringthe vessel up against the chuck El, the latter being continuously run by its geaueonnection ywiththe driving-shaft B. The frictional contact of the vessel and chuck E? causes said vessel,with its chuck H', to be revolved atacomparatively high rate of speed without being affected by the seaming mechanism until the lever F' is drawn ICC IIO

IIS

down by the operator topermit the camwheel lla'tter parts given a atfface, especially when F to clutch the worm-wheel C and thereby set it is not desirable` to make bead-like seams;

in motion the vertical-shaft D and the several parts connected therewith, the roulette e' being drawn out of the notch ein said cam-wheel at the same-time. The cam S on the vertical shaft D has sucha profile lthat the grooves k3 in the formers k2. belonging to the respective heads are held for atime against the flanges` of the top and bottompieces that come over on the outside of the vessel-body, thereby bending these flanges down against said vessel-bod y to form a single seam, as illustrated by the enlarged detail view, Fig. 6. By the time asingle seam has been completed the roulette 'm' on the sliding plate R will be drawn by the springs m into a depression of the cam S and said sliding plate thereby moved forward in the guide-piece R by the contraction of said springs, and by the rod-and-crank connection Q Q the vertical shaft P will be turned in its ,bearings to bring lthe rolls or formers k away from the seams, and simultaneously the heads will be tilted by the prole of the cams M (best shown in Fig. 4) to bring the rolls or formers k k into position astride saidk seams, the plane faces or enlarged central portion of therolls or formers k2 being in the meantime -held against the seams to close them tight against the body of the vessel. In case the shaft P and its arms l?2 should be omitted the bending down of the flanges on the coverpieces and finishing of 'thesin'gle seams would be accomplished by the rolls or fol-mers k 7c', the movement 'of the shaft O being suitably timed for this operation.' y

The operations just described 'are simultaneous,and by the time of their completion the groove in the cam-wheel F, acting on the stud or roulette p, causes the lever-arm U2 to depress the rod U and thereby set in motion the pinion T, the latter operating the rack O"',that in turn actuates the shaft O of the upper head through the medium of the pinion-connection O2. At the same time this pinion O2 actuates the vertically-disposed rack V, that in turn,

through the medium of the gear above'described, communicates motion to the shaft in the lower head, the intervals between the teeth in said rack being sufiiciently wide to permit the tilting of the heads.

-By the construction and arrangementofparis -just specified the .shafts O are rocked in an outward direction to bring the rolls or formers k k', together with the seams, into the position shown by Fig. 7, this rocking motion being continued until said heads are brought to` the position shown inV Fig. 8; By thisk time the rolls or'formers 7c k have -passed out of contact with the seams, and the rolls or formers k2 have been brought back by the second action ofthe cam S, so that their grooves k* are brought against said seams to bend the latter close against the vessel-body and thereby` finish the double seams.

. In some instances the grooves k3 le* may be omitted from the rolls -or formers k2, and thesev and in case the shaft P and its arms l)2l are `omitted the shaft O willbe given a movement to cause the rolls or .formers k to finish thel By the time the shaft D has completed itsrevo'- lution the lever F is drawn down by the spring F, to disengage the clutch mechanism that connects the cam-wheel F with the worin-wheel C, the roulette e on said lever enters the notch e in said camwheel, and at the same instant the roulettef on thelever G enters the notch f in the cam G, thus causing the spindle I-I'to 'drop and carry therewith thelower chuck, H', Y

whereby the finished vessellis stopped from rotating and can be removed by the operator, or is thrown away from themaehine..L r

From the time the vessel-body with its vloose covers is brought in contact with the upper chuck, E, and the starting'.- lever F drawn down, the entire operation oft seamingis automatically performed and said'vessellike wise released upon the completion of such operation.l v

It will be noticed that the mechanism for yelevating the lower chuck, H', is entirelyin ldependent of the seamingmechanism, and

consequently the vessel may be revolved for any length of time before or after the said seaming mechanism is brought into operation, it being only .necessary to depress and hold .down the foot-lever G3 in order to accomplish the elevation of said chuck and keep-the roulettef out of the notchfin the cam G untilitis' desirable to stop the revolution-ofsaid` vessel. v

The feature of my machine just described is particularly desirable when said' machine is i employed for seaming tops onto filled vessels, as it often happens that some of the contents will escape, and. hence said vessels can beumore`A readily cleansed while being revolved.

My machine as thus far described is more particularly designedfor double-seaming the' top or bottom pieces, or bot-h', to vessel-bodies;-`

but said machine may bev adapted for other uses in the art of making sheet-metal vessels.

If desirable' to have theupper `head only operate upon the vessel, the vertically-disposed rack V'may be detached,l so as to .cut o mo- Ation'from the lowerhead, and iu caselit-may. not be necessary 'to have both .heads roclqtoperform the Vseaming-operationv and still utilize the rolls or former'skz, Isimply release-the ,shackleU from the lever-arm U2, thereby preventing the horizontal rack from beingactuated.'

For seaming heavy stock, or at any time it may be necessary, I propose to duplicate the parts Q Q', R R', and S, and connect them directly to the shaft P, or that portion thereof belonging to the lower head.

I have shown the spindle E as normally stationary in a vertical direction; but it is obvi-V ous that I may spline the same to the gearwheel E, and connect said spindle by a pivoted yoke to the upper portion of the standard A', and at the same time give the top face of the cam-wheel F a profile similar to that of the cams M,and impinge this cam-face against a stud or roulette forming part of the yoke, as illustrated by Fig. 13, this construction being somewhat similar to that shown and described iu my Patent No. 277,962, dated May 22, 1883. In such a construction the lower seaming-head would not be employed, while the upper head would be rigidly connected to its box K, and the arm L, belonging to said head, as wellas the cam M relative thereto on the shaft D, omitted.

By the construction just described a vertical movement would be given to the chucked vessel at predetermined intervals during the operation of seaming, to bring said vessel into the various positions relative to the rolls or formers belonging to the upper head.

The arrangement of parts latterly set forth serves the same purpose as that shown in the drawings, and more particularly described in the foregoing specicatiomthe only difference being that predetermined vertical movements are given the vessel,instead of tilting the heads, to accomplish the same result.

In case my machine is constructed as last described the spring J is employed to cause the lower spindle, H, with its chuck H, to move with the vessel in a vertical direction; or, if found more desirable, the spring may be omitted and the cam-wheel G given such a profile on its lower face as will cause the lever G to rise and fall at predetermined intervals.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for working the seams of sheet-metal vessels, the combination of a nonreciprocating revolving chuck, a movable chuck opposing the one first named, a fulcrumed bearing, a shaft arranged in the bearing, rolls or formers carried on the shaft, and suitable mechanism for actuating the movable chuck, tilting the bearing, and rocking said shaft at predetermined intcrvals,substantially as set forth. y

2. In a machine for working the seams of sheet metal vessels, two fulcrumed bearings, a shaft arranged in each bearing, rolls or formers carried on each shaft, and suitable mechanismfor'sim ultaneously tilting the bearings and rocking the shafts at predetermined intervals, substantially as set forth.

3. In a machine for working. the seams of sheet-metal vessels, the combination of a continuouslyrevolving chuck, a normally -sta tionary chuck arranged in` opposition to the one first named and provided with a loosely'- journaled spindle, a lever pivoted to the frame ofthe machine and connected at one end to the spindle, a shaft geared to a driving mechanism, and a cam carried by the shaft and so positioned as to impinge against the end of said lever opposite that connected with said spindle, whereby the spindle and its chuck are raised and lowered at predetermined intervals, substantially as set forth.

4.. In a machine for working the seams of sheet-metal vessels, the combination of a continuously revolving chuck, a normally stationary chuck in opposition to the one firstv named and provided with a looselyjonrnaled spindle, a lever pivoted to the frame of the machine and connected at one end tothe spindle, a shaft geared to a driving mechanism, a cam carried by the shaft and so positioned as to impinge against the end of the lever opposite that connected with said spindle, and a treadle mechanism for actuating said lever independent of the cam, substantially las set forth.

5. In a machine for working the seams of sheet-metal vessels, the combination of a continuonsly revolving chuck, a normally stationary chuck in opposition to the one first named and provided with a loosely-journaled spindle, a spring arranged on the spindle, a lever pivoted to the frame of the machine and connected at one end to said spindle in opposition to the spring, a shaft geared to a driv ing mechanism, and a cam carried by the shaft and so positioned as to impinge against the end ofthe lever opposite that connected with said spindle, substantially as set forth.

6. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, a bracket suitably connected to the standard, a chuck having ils spindle loosely journaled in the bracket, a lever fulcrumed to the bracket and operatively united at one end to the chuckspindle, a shaft having a loose gear-connection with a drivingv mechanism, a cam fast on the shaft, a clutch mechanism for uniting the cam and gear, a notched wheel arranged on said shaft to impinge against the other end of the chuck-lever, and a chuck in opposition to the one first named, substantially as set forth.

7. In a machine for working the seams ofsheet-metal vessels, a head comprising a suitable block, a bearing secured to the block, a shaft arranged in the bearing and provided IOO with rolls or formers, a suitably-arranged shaft carrying an arm provided with a roll or former, and suitable means for imparting a partial revolution to the last-named shaft at predetermined intervals, substantially as and for the purpose set forth.

8. -In a machine for working the seams of sheet-metal vessels, a head comprising a fulcrumed block, av bearing secured to the block, a shaft arranged in the bearing and provided with rolls or fo rmers, a suitably-arranged shaft l carrying an arm provided with a roll or former, and suitable means for tilting the head and for actuating the shaftsat predetermined intervals, substantially as and for the purpose set forth.

. 9. In a machine for working the seams of sheet-metal vessels, thecombination of a main standard provided with a suitable box, a head comprisinga block fulcrumed to the box, a bearing secured to the block, and a shaftarranged in the bearing and provided with rolls or formers, a rack operative in said box, a pinion on said shaftarranged to engagethe rack, and means, substantially as described, for actuating said rack, as and for the purposeset forth.

- 10. In a machine for working the seams of l sheet-metal vessels, the combination of a main standard provided with a suitable box, a head comprising a block fulcrumed to the box, a

bearing secured to the block, and a shaft arranged in the bearing and provided with rolls or formers, a rack operative ,in lsaid box., a

pinion en said shaft arranged to engage thel rack, a suitably-arranged shaft carrying an arm provided with a roll or former, and suitable means for tilting the head, operating the rack, and actuating the last-named shaft at predetermined intervals, substantially as vand for the purpose set forth.

11. In a'maehine for working the seams of sheet-metal vessels, the combination of a main standard, ahead comprising a block fulcrumed l to the standard, a bearing adj ustably united to the block, and a rock-shaft arranged in the bearing and provided with rolls or formers, a suitably-arranged shaft carrying an 'arm provided with a roll or former, and suitable means for actuating the shafts at predetermined intervals, substantially as and for the purpose set forth.

, 12. In a machine for working the seams of sheet-metal vessels,'the combination ofa main lstandard provided with a suitable box,a head eompnsing a block fulcrumed tothe box, a bearing secured to the block, and a shaft ar- Y ranged in the bearing and provided with rolls or formers, a rack operative in said box, a pinion on said shaft arranged to engage the rack, another pinion engaging said rack, a rod having its lower end wristed to thelatter pinion, a lever-arm fulcrumed to said standard and united with the rod, a suitably-arrangedshaft carrying an arm provided with aroll or former, and suitable means for tilting the head and actuating the lever-arm and last-named shaft,

`substantially as and for the purpose set forth.

13. In a machine for Working the seams of sheet-metal vessels, the combination of amain standard, a head comprisinga block suitably secured to the standard, a bearing united to the block, and a rock-shaft arranged in the bearing and provided with rolls or formers, a suitably-arranged shaft carrying an arm providedl with a roll or former, a sliding plate operativelyconnected by a rod with the lastnamed shaft, and suitable means for actuating the rockshaft and sliding plate at predetermined intervals, substantially as and for the purposesetfortu Y 14. In a machine -fo'r working4 the seams of sheetmetal vessels, the combination of a main standard, a head comprising a block suitably secured to the standard and provided with a l-shaped Vslot'vand shoulders, a bearing having a ange fitted to slide on said shoulders yand secured to theblock Yby a ler-bolt, a rockshaft arranged in the bearing and vprovided with rolls or formers, asuitably-arranged shaft carrying an arm provided with a roll or former, and suitable meansfor actuating the shafts at predetermined intervals, substany vtially as and for the purpose set forth.

15. In a machine for working thev seams of sheet-metal vessels, the combination of a main standard, two heads, each comprising a'bloek suitably secured to the standard, a bearing united to the block, a rockshaft arrangedin the bearing and provided with rolls or form# ICO loosely arranged in the chamber, a shaft jour naled infthe disksv andv carrying arms pro-- vided with rolls or formers, and suitable means for simultaneously operating both rock-shafts and actuating the arm-shaft at predetermined intervals, substantially as and for the purposel set forth.

. 17. In a machine for working the seams of sheet-metal vessels, the combination of'a main standard, two heads, each comprisinga block- ITO suitably secured to the standard,a bearingl i' united tothe block, and a shaft arrangedin thev bearing and provided with rollsor formers, a pinion on each shaft, a horizontal rack arranged to engage the pinion of one shaft, a vertically-disposed rack, also arranged to engage this pinion, an intermediate pinionarranged to engage the latter rack and the pin- .ion on' the other shaft, a suitably-arranged shaft carrying arms providedl with. rolls or formers, and 'suitable means foractuating'the horizontal rack and the last-named shaftrat predetermined intervals, substantially asand foi-the purpose set forth.

18. In a machine for working the seams ofv sheet-metal vessels, the combina tion of a main standard, two heads suitably secured tofthe` standard, to be laterally adjustable withrelation thereto, and one of said heads vertically adjustable on said standard,"eachhead hav- -ing a shaft arranged'in a bearing and providedl with rollsor formers, a pinion on each shaft,

a horizontal rack arranged to engage the pinion on one-shaft, a vertically-disposed shaft arranged to engage this pinion, an intermediate pinion arranged to engage the latter rack and the pinion on the other shaft, a suitably-arranged shaft carrying arms provided with rollsor formers, and 'suitable means for actuating the horizontal rack and last-named shaft at predetermined intervals, substantially as and for the purpose set forth.

19. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, a shaft having its bearings on the standard, a head fulcrumed to said standard and provided with an arm, a rock-shaftjournaled in the head and provided with rolls or formers, a chucking mechanism, and cams arranged on said shaft to engage the arms on the head and actuate said chucking mechanism, substantially as set forth.

20. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, a shaft having its bearings on the standard and provided with a series of cams, a chuck normally held in one position and continuously revolved, a sliding chuck in opposition to the one first named and normally non-revoluble, a lever mechanism arranged to actuate the latter chuck independent of the seaming mechanism, suitable heads fulcrumed to said standard and provided with arms to engage the cams on the shaft, and rock-shafts carrying rolls or formers, another shaft jour naled to the heads and carrying arms provided With rolls or formers, a spring sliding plate operatively connected to the latter shaft, a cam on the former shaft arranged to actuate the sliding plate at predetermined intervals, and suitable means for starting and automatically stopping the revolution of said formershaft, imparting a simultaneous movement to both rock-shafts and automatically unehucking the vessel, substantially as and for the purpose set forth.

21. In a machine for working the seams of sheet-metal vessels, the combination of a main standard provided with a suitable box, a head comprising a block fulcrumed to the box, a`

bearing secured to the block, and a shaft arranged in the bearing and provided with rolls or formers, a rack operative in said box, a pinion on said shaft arranged to engage the rack, and suitable means for tilting the head and operating the rack, substantially as and for the purpose set forth. l

22. In a machine for working the seams of sheet-metal vessels, the combination of a main standard provided with a suitable box, a head comprising a block fulcrumed to the box, a bearing secured to theblock, and a shaft arranged in the bearing and provided with rolls or formers, a rack operative in said box, a pinion on said shaft arranged to engage the rack, another pinion engaging said rack, a rod having its lower end wristed tothe latter pinion, a lever-arm fulcrumed to said standard and united tothe rod, and suitable means for tilt-V ing the head and actnatingthe lever-arm, sub' stantially as and for the purpose set forth.

23. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, a head comprising a block 4suitably secured to the standard and provided with al- Vshaped slot and shoulders, a bearing having a flange fitted to slide on said shoulders and secured by a lbolt, a rockshaft arranged in the bearing and provided with rolls or formers, and suitable means for actuating the shaft at predetermined intervals, substantially as and for the purpose set forth.

2l. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, two heads, each comprising a block suitably secured to the standard, a bearing united to the block, and a rock-shaft arranged in the bearing and provided with rolls or formers, and suitable means for simultaneously operating b oth rock-shafts at predetermined intervals, substantially as and for the purpose set forth.

25; In a machine for working the seams of sheet-metal vessels, the combination of a main standard, two heads, each comprising a block suitably secured to the standard, a bearing united to the block, and a shaft arranged in the bearing and provided with rolls or formers, a pinion on each shaft, a horizontal rack arranged to engage the pinion of one shaft, a vertically-disposed rack, also arranged to engage this pinion, an intermediate pinion arranged to engage the latter rack and a pinion on the other shaft, and suitable means for actuating the horizontal rack at predetermined intervals, substantially as and for the purpose set forth.

26. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, two heads suitably secured to the standard,`to be laterally adjustable with rela,- tion thereto, and one of said heads vertically adjustable on said standard, each head having a shaft arranged in a bearing and provided with rolls or formers, and a pinion on each shaft, a horizontal rack arranged to engage the pinion on one shaft, a vertically-disposed shaft arranged to engage this pinion, an intermediate pinion arrangedto engage the latter rack and the .pinion on the other shaft, and suitable means for actuating the horizontal rack, substantially as and for the purpose set forth.

27. In a machine for working the seams of sheet-metal vessels, the combination of a main standard, a shaft having its bearings on the standard and provided with a series of cams, a chuck normally held in onel position and continuously revolved, a sliding chuck in opposition to the one rst named and normally non-revoluble, a lever mechanism arranged to actuate the latter chuck independent of the seaming mechanism, suitable heads fulcrumed to said standard and provided with arms to engage cams on the shaft and rock-shafts carrying rolls or formers, and suitable means for IOO IlO

IIS

starting and-automatically stopping the revorevolulolelshaft providedwith aseries of cams lI 5 lution of the formershaft, imparting a simultaneous movement to both rock-shafts and automatically nnchucking the vessel, substantially as and for the purpose set forth.

28. In a machine for workingrthe seams of sheet-metal vesse1s,the combination of a chucking mechanism, a seamlng mechanism, and a revoluble shaft provided with a series of cams arranged at intervals thereon to directly actuate said mechanisms, substantially as set forth.

29. Inn machine for working the seams of sheet-metal vessels, the combination of a chucking mechanism, a seaming mechanism, and a arranged at intervals thereon to directly actuate said mechanisms, and so timed that a vessel vis chucked, seamed, and released by one revolution of the shaft, substantially as set forth. Y

In testimony that Iclaimthe foregoing I 4 have hereunto set my hand, at Milwaukee, in

the county of Milwaukee and State of Wisconsin, in the presence of two Witnesses.`

- FRANCIS A. WALSH.

Witnesses:

N. E. OLIPHANKT, MAURICE F. FREAR. 

